Jeff McLane and Zach Berman

Kevin Kolb headed back to Philadelphia after practice this morning for an MRI examination and a visit with team physician Peter DeLuca.

"I'm OK," Kolb told the Inquirer after he sprained his left knee during the Eagles' morning workout at Lehigh University. "It's no big deal. I'm going to see Pete."

The MRI and DeLuca will determine the exact severity of Kolb's injury. The Eagles' No. 2 quarterback suffered the sprain during a team drill when the pocket collapsed on him.

"I got stepped on by one of my linemen," Kolb said.

It appeared to be giant left tackle King Dunlap who stepped on Kolb's left leg, causing the quarterback to lose his balance. Kolb immediately limped away from his teammates before being examined by a team trainer. He eventually left the field, leaving A.J. Feeley to run both the second and third-team offense.

Kolb had a sleeve on his left leg and was noticeably limping as he left the locker room facility.

Trent Cole left the morning practice with what the team described as a sprained left shoulder, but the Eagles' defensive end didn't think it was that serious.

"I'm all right," Cole said. "It's just a bruise."

Eagles coach Andy Reid said Cole did not need an MRI.

Cornerback Sheldon Brown also left the practice field after being pulled down from behind by rookie receiver Jeremy Maclin, but he returned at the end of practice.